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How many significant figures does the following value contain?

0.0200

Three

You want to find the mass of an unknown sample. You are given the density as 1.2 g/cm 3 and the volume as 4.0 mL. What is the mass?

4.8 grams

The mass of an object is 4.3 grams. It is heated and placed in a container of water.

The object released 400. Joules of energy and had a temperature change of 25 degrees Celsius. What is its specific heat?

3.7 J/g 0 C

Which of the following elements has the smallest atomic radii?

K, Ni, Ge, Br

Br

What is the average atomic mass of an element? Be specific.

The average of all of the isotopes of that element in nature.

What is the electron configuration for Nitrogen?

1s 2 2s 2 2p 3

Write the equation for Carbon-11 decay through positron emission.

11 C 6 → 11 B 5 + 0 e 1

How would I name the following: MnCl 2

Manganese (II) Chloride

How many grams of water are produced if 2.45 grams of Hydrogen are combined with excess oxygen in a reaction?

21.9 grams

How many atoms of Carbon are needed in C 6 H 12 O 6 to produce 5.0 grams of CO 2 through a combustion reaction?

6.8 x 10 22 atoms

What is the name of the following compound: HF

Hydrofluoric Acid

What are the products of the following reaction going to be?

Na + Br 2



NaBr

What type of bond/force attracts different molecules?

Intermolecular forces

What is the lewis structure for SO 4 2 ? Draw the structure and identify the type of molecular geometry it would have.

Tetrahedral

What is the name of the following compound: CaCO 3 • 3H 2 O

Calcium Carbonate Trihydrate

Hydrogen gas is at standard temperature and pressure. It takes up a volume of 0.5L. How many grams of gas do you have?

0.04 grams Hydrogen

If a balloon expands from 25 mL to 1200 mL and the pressure started at 0.952 atm, what is the new pressure?

0.020 atm

N 2 + 3H 2



2NH 3 If pressure was added to this system, in what direction would the equilibrium move to?

The right

Assume that 5.60 L of hydrogen gas at STP reacts with copper (II) oxide according to the following balanced equation : CuO (s) + H 2 (g)



Cu (s) + H 2 O (g) How many grams of copper are produced?

15.9 g Cu

A 3.25 gram sample of solid calcium carbide (CaC2) reacts with water to produce acetylene gas (C2H2) and aqueous calcium hydroxide. If the acetylene was collected over water at 17ºC and 740.0 mm Hg, how many milliliters of acetylene were produced?

1250 mL C 2 H 2

What is a photon?

A packet of energy that is released when an electron goes from an excited back to a ground state.

How many liters are in 5.0 grams of Chlorine gas?

1.6 liters

How many mL are in 20 cubic centimeters?

20 mL

What are the five states of matter?

Bose-Einstein Condensate Solid Liquid Gas Plasma

What is the amount of heat required to raise the temperature of one gram of a substance by 1 degree Celsius?

Specific Heat

Make your wager

What game did Hardy like to play with Punnett?

Cricket